Rolling paper for rolling a tapered filter tip for a cigarette

ABSTRACT

A rolling paper ( 1 ) for rolling a tapered filter tip ( 2 ) for a cigarette ( 3 ), said rolling paper ( 1 ) comprising a flat paper body ( 4 ) comprising an upper edge ( 5 ), a lower edge ( 6 ), a first side edge ( 7, 8 ), and a second side edge ( 7, 8 ), wherein the upper edge ( 5 ) is positioned opposite to the lower edge ( 6 ), and the first side edge ( 7, 8 ) is positioned opposite to the second side edge ( 7, 8 ), and at least one folding line extending transversely to the upper edge ( 5 ) and the lower edge ( 6 ) and located closer to the second side edge ( 7, 8 ) than the first side edge ( 7, 8 ), wherein the upper edge ( 5 ) is larger than the lower edge ( 6 ), the upper edge ( 5 ) comprises an upper curved part, the upper edge ( 5 ) transitions into the first side edge ( 7, 8 ) at an upper corner ( 11 ), the lower edge ( 6 ) comprises a lower curved part, the lower edge ( 6 ) transitions into the first side edge ( 7, 8 ) at a lower corner ( 13 ), and at least one of the lower corner ( 13 ) and the upper corner ( 11 ) is a rounded corner ( 14 ).

FIELD OF THE INVENTION

The invention relates to rolling paper for rolling a tapered filter tipfor a cigarette. Said rolling paper is used for different types ofcigarettes, in particular for cigarettes comprising cannabis.

BACKGROUND OF THE INVENTION

The invention is based on the insight that there is a need to improvethe production of assemblies comprising a tapered hollow cylinder madeof cigarette paper and a tapered filter tip. Said assemblies are used toproduce cigarettes by filling the inside of the tapered hollow cylinderswith a smokable substance, such as tobacco and/or cannabis.

SUMMARY OF THE INVENTION

The invention has the objective to provide an improved (or at leastalternative) rolling paper for rolling a tapered filter tip for acigarette. Said rolling paper comprises:

-   -   a flat paper body comprising an upper edge, a lower edge, a        first side edge, and a second side edge, wherein the upper edge        is positioned opposite to the lower edge, and the first side        edge is positioned opposite to the second side edge, and    -   at least one folding line extending transversely to the upper        edge and the lower edge and located closer to the second side        edge than the first side edge, wherein;        -   the upper edge is larger than the lower edge,        -   the upper edge comprises an upper curved part,        -   the upper edge transitions into the first side edge at an            upper corner,        -   the lower edge comprises a lower curved part,        -   the lower edge transitions into the first side edge at a            lower corner, and        -   at least one of the lower corner and the upper corner is a            rounded corner.

In a tapered filter tip formed by said rolling paper, the paper body isfolded along the at least one folding line to form a folded part of thepaper body, and a remaining body part of the paper body is rolled aroundthe folded part in a spiral configuration with the first side edge, thelower corner and the upper corner being located at an outer side of thetapered filter tip.

Due to the fact that at least one of the lower corner and the uppercorner is a rounded corner, the risk is reduced that the lower cornerand/or the upper corner will damage a tapered hollow cylinder made ofcigarette paper when the tapered filter tip is moved inside said taperedhollow cylinder made of cigarette paper.

This allows that assemblies comprising a tapered hollow cylinder made ofcigarette paper and the tapered filter tip can be produced according tothe following method;

-   -   placing the tapered filter tip in a wide opening of the tapered        hollow cylinder made of cigarette paper, and    -   moving the filter tip inside the tapered hollow cylinder made of        cigarette paper from the wide opening into a position adjacent        to an opposite narrow opening of said tapered hollow cylinder.

The tapered filter tip reduces the risk that the lower corner and/or theupper corner will damage the tapered hollow cylinder made of cigarettepaper when said method is used.

In addition, said method allows that the production of assembliescomprising the tapered hollow cylinder made of cigarette paper and thetapered filter tip can be automated, due to which the production time ofsaid assemblies can be reduced.

In an embodiment of the rolling paper, a corner radius R of the roundedcorner is at least 0.25 mm, preferably at least 1 mm, and morepreferably at least 2 mm.

In an embodiment of the rolling paper, a corner radius R of the roundedcorner is within the range of 0.25-6 mm, preferably within the range of1-5 mm, and more preferably within the range of 2-4 mm.

In an embodiment of the rolling paper, the rounded corner extends alongpart of a corner circle having the corner radius R.

In an embodiment of the rolling paper, the upper corner is formed as therounded corner and referred to as a rounded upper corner.

In an embodiment of the rolling paper, the rounded upper corner has anupper corner radius R_(UC) within the range of 0.5-6 mm, preferablywithin the range of 2-5 mm, and more preferably 4 mm.

In an embodiment of the rolling paper, only the upper corner is formedas the rounded corner.

In an embodiment of the rolling paper, the lower corner is formed as therounded corner and referred to as a rounded lower corner.

In an embodiment of the rolling paper, the rounded lower corner has alower corner radius R_(LC) within the range of 0.25-5 mm, preferablywithin the range of 1-4 mm, and more preferably 2 mm.

In an embodiment of the rolling paper, only the lower corner is formedas the rounded corner.

In an embodiment of the rolling paper, the upper corner and the lowercorner are formed as the rounded corner and referred to as a roundedupper corner and a rounded lower corner, respectively.

In an embodiment of the rolling paper, the rounded upper corner has anupper corner radius R_(UC), the rounded lower corner has a lower cornerradius R_(LC), and the upper corner radius R_(UC) differs from the lowercorner radius R_(LC).

In an embodiment of the rolling paper, the upper corner radius R_(UC) islarger than the lower corner radius R_(LC).

In an embodiment of the rolling paper, the upper corner radius R_(UC) iswithin the range of 1.1-5 times larger than the lower corner radiusR_(LC), preferably within the range of 1.5-3 times larger than the lowercorner radius R_(LC), and more preferably 2 times larger than the lowercorner radius R_(LC).

In an embodiment of the rolling paper, the rounded upper corner extendsalong part of an upper corner circle having the upper corner radiusR_(UC).

In an embodiment of the rolling paper, the rounded lower corner extendsalong part of a lower corner circle having the lower corner radiusR_(LC).

In an embodiment of the rolling paper, the upper curved part and thelower curved part extend parallel to each other.

In an embodiment of the rolling paper, the upper curved part extendsalong part of an upper edge circle having an upper edge radius R_(UE).

In an embodiment of the rolling paper, the lower curved part extendsalong part of a lower edge circle having a lower edge radius R_(LE).

In an embodiment of the rolling paper, the upper edge circle and thelower edge circle are concentric.

In an embodiment of the rolling paper, the upper edge circle has anupper edge centre, the lower edge circle has a lower edge centre, andthe upper edge centre and the lower edge centre coincide in a singlecentre point.

In an embodiment of the rolling paper, the upper curved part extendsalong the complete upper edge.

In an embodiment of the rolling paper, the lower curved part extendsalong the complete lower edge.

In an embodiment of the rolling paper, the lower curved part extendsalong part of the lower edge.

In an embodiment of the rolling paper, the lower edge comprises achamfered part located between the lower curved part and the lowercorner.

In an embodiment of the rolling paper, the chamfered part extends underan angle α away from the lower curved part and towards the upper edge.

In an embodiment of the rolling paper, the angle α is within the rangeof 5-45 degrees, preferably within the range of 10-30 degrees, and morepreferably 20 degrees.

In an embodiment of the rolling paper, the chamfered part extends fromthe lower curved part until the lower corner.

In an embodiment of the rolling paper, the lower curved part extendsalong a remaining edge part of the lower edge. The remaining edge partis formed by the rest of the lower edge when the chamfered part isexcluded.

In an embodiment of the rolling paper, the first side edge comprises afirst straight part and the second side edge comprises a second straightpart.

In an embodiment of the rolling paper, the first straight part extendsalong the complete first side edge and the second straight part extendsalong the complete second side edge.

In an embodiment of the rolling paper, the first straight part and thesecond straight part extend transversely, such as perpendicular, to theupper edge and the lower edge.

In an embodiment of the rolling paper, the first straight part and thesecond straight part extend transversely, such as perpendicular, to theupper curved part and the lower curved part.

In an embodiment of the rolling paper, a first virtual line extendingthrough the first straight part and a second virtual line extendingthrough the second straight part both extend through the single centrepoint.

In an embodiment of the rolling paper, each of the at least one foldingline is straight and extends transversely, such as perpendicular, to theupper edge and the lower edge.

In an embodiment of the rolling paper, each of the at least one foldingline is straight and extends transversely, such as perpendicular, to theupper curved part and the lower curved part.

In an embodiment of the rolling paper, at least one third virtual lineextending through each of the at least one folding line also extendsthrough the single centre point.

In an embodiment of the rolling paper, the at least one folding lines isformed by a weakening line in the paper body.

In an embodiment of the rolling paper, the weakening line is formed bydiscontinuous perforation in the paper body.

In an embodiment of the rolling paper, the weakening line is formed byone or more incisions in the paper body.

In an embodiment of the rolling paper, the rolling paper comprisesmultiple, such as 2 or 3 or 4 or 5, folding lines.

In an embodiment of the rolling paper, the rolling paper comprises oneand only one folding line.

In an embodiment of the rolling paper, the paper body is made from apaper having a weight within the range of 95-175 gram/meter², preferablewithin the range of 120-150 gram/meter², more preferably 135gram/meter².

The invention further relates to a tapered filter tip for a cigaretteformed by a rolling paper according to the invention, wherein:

-   -   the paper body is folded along the at least one folding line to        form a folded part of the paper body, and    -   a remaining body part of the paper body is rolled around the        folded part in a spiral configuration with the first side edge,        the lower corner and the upper corner being located at an outer        side of the tapered filter tip.

In an embodiment of the tapered filter tip, the spiral configuration ofthe tapered filter tip defines a longitudinal tip axis.

The invention further relates to a kit of parts comprising a taperedhollow cylinder made of cigarette paper and a tapered filter tipaccording to the invention.

The invention further relates to an assembly comprising a tapered hollowcylinder made of cigarette paper and a tapered filter tip according tothe invention, wherein the tapered filter tip is located inside thetapered hollow cylinder made of cigarette paper.

In an embodiment of the assembly, the tapered hollow cylinder made ofcigarette paper comprises a wide opening and an opposite narrow opening,and the tapered filter tip is located in a position adjacent to thenarrow opening of said tapered hollow cylinder.

The invention further relates to a cigarette comprising an assemblyaccording to the invention and a smokable substance, such as tobaccoand/or cannabis, being located inside the tapered hollow cylinder madeof cigarette paper.

The invention further relates to a method for producing an assemblycomprising a tapered hollow cylinder made of cigarette paper and atapered filter tip according to the invention, said method comprising;

-   -   placing the tapered filter tip in a wide opening of the tapered        hollow cylinder made of cigarette paper, and    -   moving the filter tip inside the tapered hollow cylinder made of        cigarette paper from the wide opening into a position adjacent        to an opposite narrow opening of said tapered hollow cylinder.

In an embodiment of the method, the method comprises rotating thetapered filter tip around the longitudinal tip axis when moving thefilter tip inside the tapered hollow cylinder made of cigarette paper.

In an embodiment of the method, the method comprises rotating thetapered filter tip in a same direction as the spiral configuration isrolled.

In an embodiment of the method, the method comprises moving the taperedfilter tip inside the tapered hollow cylinder made of cigarette paperwhile keeping the lower edge of the filter tip directed to the narrowopening of said tapered hollow cylinder.

BRIEF DESCRIPTION OF THE DRAWINGS

Embodiments of the rolling paper, tapered filter tip, kit of parts,assembly, cigarette and method according to the invention will bedescribed by way of example only, with reference to the accompanyingschematic drawings in which corresponding reference symbols indicatecorresponding parts, and in which:

the FIGS. 1A and B schematically show a side view of a first embodimentof the rolling paper according to the invention,

FIG. 1C schematically shows a view in perspective of a tapered filtertip made from the rolling paper of FIG. 1A,

FIG. 1D schematically shows a side view of the tapered filter tip ofFIG. 1C, the FIGS. 1E-G schematically show side view of a method forproducing an assembly comprising a tapered hollow cylinder made ofcigarette paper and the tapered filter tip of FIG. 1C,

FIG. 1H schematically shows a side view of a cigarette comprising theassembly of FIG. 1G and a smokable substance,

the FIGS. 2A and B schematically show a side view of a second embodimentof the rolling paper according to the invention,

FIG. 2C schematically shows a side view of a tapered filter tip madefrom the rolling paper of FIG. 2A,

the FIGS. 3A and B schematically show a side view of a third embodimentof the rolling paper according to the invention,

FIG. 3C schematically shows a side view of a tapered filter tip madefrom the rolling paper of FIG. 3A,

the FIGS. 4A and B schematically show a side view of a fourth embodimentof the rolling paper according to the invention,

FIG. 4C schematically shows a side view of a tapered filter tip madefrom the rolling paper of FIG. 4A,

FIGS. 5A and B schematically show a side view of a fifth embodiment ofthe rolling paper according to the invention, and

FIG. 5C schematically shows a side view of a tapered filter tip madefrom the rolling paper of FIG. 5A.

DETAILED DESCRIPTION OF THE DRAWINGS

FIG. 1A shows a side view of a first embodiment of the rolling paper 1according to the invention. The rolling paper 1 is configured forrolling a tapered filter tip 2 for a cigarette 3. The rolling paper 1comprises a flat paper body 4 comprising an upper edge 5, a lower edge6, a first side edge 7, and a second side edge 8. The upper edge 5 ispositioned opposite to the lower edge 6, and the first side edge 7 ispositioned opposite to the second side edge 8.

The rolling paper 1 further comprises four folding lines 9A-D extendingtransversely to the upper edge 5 and the lower edge 6 and located closerto the second side edge 8 than the first side edge 7.

The upper edge 5 is larger than the lower edge 6. The upper edge 5comprises an upper curved part 10. The upper edge 5 transitions into thefirst side edge 7 at an upper corner 11. The lower edge 6 comprises alower curved part 12. The lower edge 6 transitions into the first sideedge 7 at a lower corner 13. The upper corner 11 and the lower corner 13are formed as a rounded corner 14 and therefore referred to as a roundedupper corner 14A and a rounded lower corner 14B, respectively.

In other examples of the rolling paper 1, at least one of the lowercorner 13 and the upper corner 11 is a rounded corner 14. In saidsituation, a corner radius R of the rounded corner 14 is at least 0.25mm, preferably at least 1 mm, and more preferably at least 2 mm. Thecorner radius R of the rounded corner 14 may be within the range of0.25-6 mm, preferably within the range of 1-5 mm, and more preferablywithin the range of 2-4 mm. The rounded corner 14 extends along part ofa corner circle 15 having the corner radius R. The corner radius R ofthe upper corner 11 (see R_(UC)) and the lower corner 13 (see R_(LC)) isexplained more in detail in relation with FIG. 1B.

FIG. 1B shows further details of the rolling paper 1 of FIG. 1A. Therounded upper corner 14A has an upper corner radius R_(UC) of about 4mm. In other examples, the upper corner radius R_(UC) is within therange of 0.5-6 mm, preferably within the range of 2-5 mm.

The rounded lower corner 14B has a lower corner radius R_(LC) of about 2mm. In other examples, the lower corner radius R_(LC) is within therange of 1-5 mm, preferably within the range of 1-4 mm.

The upper corner radius R_(UC) differs from the lower corner radiusR_(LC). More specifically, the upper corner radius R_(UC) is larger thanthe lower corner radius R_(LC). The upper corner radius R_(UC) is about2 times larger than the lower corner radius R_(LC). In other examples,the upper corner radius R_(UC) is within the range of 1.1-5 times largerthan the lower corner radius R_(LC), preferably within the range of1.5-3 times larger than the lower corner radius R_(LC).

The rounded upper corner 14A extends along part of an upper cornercircle 15A having the upper corner 11 radius R_(UC). The rounded lowercorner 14B extends along part of a lower corner circle 15B having thelower corner radius R_(LC).

The upper curved part 10 and the lower curved part 12 extend parallel toeach other. The upper curved part 10 extends along part of an upper edgecircle 20 having an upper edge radius R_(UE). The lower curved part 12extends along part of a lower edge circle 21 having a lower edge radiusR_(LE).

The upper edge circle 20 and the lower edge circle 21 are concentric.The upper edge circle 20 has an upper edge centre 22, the lower edgecircle 21 has a lower edge centre 23, and the upper edge centre 22 andthe lower edge centre 23 coincide in a single centre point 24.

The upper curved part 10 extends along the complete upper edge 5. Thelower edge 6 comprises a chamfered part 25 located between the lowercurved part 12 and the lower corner 13. The chamfered part 25 extendsunder an angle α away from the lower curved part 12 and towards theupper edge 5. The angle α is about 20 degrees. In other examples, theangle α is within the range of 5-45 degrees, preferably within the rangeof 10-30 degrees.

The chamfered part 25 extends from the lower curved part 12 until thelower corner 13. The lower curved part 12 extends along a remaining edgepart 26 of the lower edge 6. The remaining edge part 26 is formed by therest of the lower edge 6 when the chamfered part 25 is excluded

The first side edge 7 comprises a first straight part 27 and the secondside edge 8 comprises a second straight part 28. The first straight part27 extends along the complete first side edge 7 and the second straightpart 28 extends along the complete second side edge 8. The firststraight part 27 and the second straight part 28 extend transversely,such as perpendicular, to the upper edge 5 and the lower edge 6. Morespecifically, the first straight part 27 and the second straight part 28extend transversely, such as perpendicular, to the upper curved part 10and the lower curved part 12.

A first virtual line 29 extending through the first straight part 27 anda second virtual line 30 extending through the second straight part 28both extend through the single centre point 24.

The rolling paper 1 comprises four folding lines 9. In other examples,the rolling paper 1 comprises 1 or 2 or 3 or 5 folding lines 9. Each ofthe folding lines 9 is straight and extends transversely, such asperpendicular, to the upper edge 5 side and the lower edge 6 side. Eachof the folding lines 9 is straight and extends transversely, such asperpendicular, to the upper curved part 10 and the lower curved part 12.Third virtual lines 31 extending through the folding lines 9 alsoextends through the single centre point 24.

The folding lines 9 are formed by weakening lines 32 in the paper body4. The weakening lines 32 are formed by discontinuous perforation 33 inthe paper body 4. In other examples, the weakening lines 32 are formedby one or more incisions in the paper body 4.

The paper body 4 is made from a paper having a weight of about 135gram/meter². In other examples, the paper body 4 is made from a paperhaving a weight within the range of 95-175 gram/meter², preferablewithin the range of 120-150 gram/meter².

The FIGS. 10 and 1D shows a tapered filter tip 2 made from the rollingpaper 1 of FIG. 1A. The paper body 4 of said rolling paper 1 is foldedalong the folding lines 9 to form a folded part 34 of the paper body 4.A remaining body part 35 of the paper body 4 is rolled around the foldedpart 34 in a spiral configuration 36 with the first side edge 7, thelower corner 13 and the upper corner 11 being located at an outer side37 of the tapered filter tip 2. The spiral configuration 36 of thetapered filter tip 2 defines a longitudinal tip axis 38.

Due to the fact that the lower corner 13 and the upper corner 11 are arounded corner 14, the risk is reduced that the lower corner 13 or theupper corner 11 will damage a tapered hollow cylinder 40 made ofcigarette paper 41 when the tapered filter tip 2 is moved inside saidtapered hollow cylinder 40 made of cigarette paper 41.

The FIGS. 1E-G show side view of a method for producing an assembly 42comprising a tapered hollow cylinder 40 made of cigarette paper 41 andthe tapered filter tip 2 of FIG. 1C.

In FIG. 1E, a kit of parts 39 comprising said tapered hollow cylinder 40made of cigarette paper 41 and said tapered filter tip 2 are provided.The tapered hollow cylinder 40 has a longitudinal cylinder axis 48.

The method comprises placing the tapered filter tip 2 in a wide opening43 of the tapered hollow cylinder 40 made of cigarette paper 41, andmoving the filter tip 2 inside the tapered hollow cylinder 40 made ofcigarette paper 41 from the wide opening 43 into a position adjacent toan opposite narrow opening 44 of said tapered hollow cylinder 40.

In FIG. 1F, the tapered filter tip 2 is moving through the inside of thetapered hollow cylinder 40 towards the narrow opening 44.

The method comprises rotating the tapered filter tip 2 around thelongitudinal tip axis 38 when moving the filter tip 2 inside the taperedhollow cylinder 40 made of cigarette paper 41.

The method comprises rotating the tapered filter tip 2 in a samedirection as the spiral configuration 36 is rolled. The rotationdirection of the spiral configuration 36 is indicated by rotation arrow46. The rotation direction of the tapered filter tip 2 is indicated byrotation arrow 47.

The method comprises moving the tapered filter tip 2 inside the taperedhollow cylinder 40 made of cigarette paper 41 while keeping the loweredge 6 of the filter tip 2 directed to the narrow opening 44 of saidtapered hollow cylinder 40.

In FIG. 1G, the tapered filter tip 2 has reached the position adjacentto the narrow opening 44 and inside the tapered hollow cylinder 40.

The result of the method is an assembly 42 comprising the tapered hollowcylinder 40 made of cigarette paper 41 and the tapered filter tip 2,wherein the tapered filter tip 2 is located inside the tapered hollowcylinder 40 made of cigarette paper 41. The tapered filter tip 2 islocated in a position adjacent to the narrow opening 44 of said taperedhollow cylinder 40.

The rounded corners 14 of the tapered filter tip 2 reduce the risk thatthe tapered hollow cylinder 40 made of cigarette paper 41 is damagedwhen the method is used.

In addition, said method allows that the production of assemblies 42comprising the tapered hollow cylinder 40 made of cigarette paper 41 andthe tapered filter tip 2 can be automated, due to which the productiontime of said assemblies 42 can be reduced.

FIG. 1H schematically shows a side view of a cigarette 3 comprising theassembly 42 of FIG. 1G and a smokable substance 45.

The FIGS. 2A and B show a side view of a second embodiment of therolling paper 1 according to the invention. The rolling paper 1 differsfrom FIG. 1A in that the lower curved part 12 extends along the completelower edge 6. FIG. 2C shows a side view of a tapered filter tip 2 madefrom the rolling paper 1 of FIG. 2A.

The FIGS. 3A and B show a side view of a third embodiment of the rollingpaper 1 according to the invention. The rolling paper 1 differs fromFIG. 1A in that only the upper corner 11 is formed as the rounded corner14. FIG. 3C shows a side view of a tapered filter tip 2 made from therolling paper 1 of FIG. 3A.

The FIGS. 4A and B show a side view of a fourth embodiment of therolling paper 1 according to the invention. The rolling paper 1 differsfrom FIG. 1A in that the lower curved part 12 extends along the completelower edge 6 and that only the upper corner 11 is formed as the roundedcorner 14. FIG. 4C shows a side view of a tapered filter tip 2 made fromthe rolling paper 1 of FIG. 4A.

The FIGS. 5A and B show a side view of a fifth embodiment of the rollingpaper 1 according to the invention. The rolling paper 1 differs fromFIG. 1A in that the lower curved part 12 extends along the completelower edge 6 and that only the lower corner 13 is formed as the roundedcorner 14. FIG. 5C shows a side view of a tapered filter tip 2 made fromthe rolling paper 1 of FIG. 5A. In an alternative embodiment, the loweredge 6 comprises a chamfered part 25 located between the lower curvedpart 12 and the lower corner 13 as shown in FIG. 1A.

As required, detailed embodiments of the present invention are disclosedherein; however, it is to be understood that the disclosed embodimentsare merely exemplary of the invention, which can be embodied in variousforms. Therefore, specific structural and functional details disclosedherein are not to be interpreted as limiting, but merely as a basis forthe claims and as a representative basis for teaching one skilled in theart to variously employ the present invention in virtually anyappropriately detailed structure. Further, the terms and phrases usedherein are not intended to be limiting, but rather, to provide anunderstandable description of the invention.

The terms “a” or “an”, as used herein, are defined as one or more thanone. The term plurality, as used herein, is defined as two or more thantwo. The term another, as used herein, is defined as at least a secondor more. The terms including and/or having, as used herein, are definedas comprising (i.e., open language, not excluding other elements orsteps). Any reference signs in the claims should not be construed aslimiting the scope of the claims or the invention.

It will be apparent to those skilled in the art that variousmodifications can be made to the rolling paper, tapered filter tip, kitof parts, assembly, cigarette and method according to the inventionwithout departing from the scope as defined in the claims.

1.-52. (canceled)
 53. A rolling paper for rolling a tapered filter tipfor a cigarette, said rolling paper comprising: a flat paper bodycomprising an upper edge, a lower edge, a first side edge, and a secondside edge, wherein the upper edge is positioned opposite to the loweredge, and the first side edge is positioned opposite to the second sideedge; and at least one folding line extending transversely to the upperedge and the lower edge and located closer to the second side edge thanthe first side edge, wherein: the upper edge is larger than the loweredge; the upper edge comprises an upper curved part; the upper edgetransitions into the first side edge at an upper corner; the lower edgecomprises a lower curved part; the lower edge transitions into the firstside edge at a lower corner; and at least one of the lower corner andthe upper corner is a rounded corner.
 54. The rolling paper according toclaim 53, wherein a corner radius R of the rounded corner is at least0.25 mm.
 55. The rolling paper according to claim 53, wherein a cornerradius R of the rounded corner is within a range of 0.25-6 mm.
 56. Therolling paper according to claim 54, wherein the rounded corner extendsalong part of a corner circle having the corner radius R.
 57. Therolling paper according to claim 53, wherein the upper corner is formedas the rounded corner and referred to as a rounded upper corner.
 58. Therolling paper according to claim 57, wherein the rounded upper cornerhas an upper corner radius R_(UC) within a range of 0.5-6 mm.
 59. Therolling paper according to claim 57, wherein only the upper corner isformed as the rounded corner.
 60. The rolling paper according to claim53, wherein the lower corner is formed as the rounded corner andreferred to as a rounded lower corner.
 61. The rolling paper accordingto claim 60, wherein the rounded lower corner has a lower corner radiusR_(LC) within a range of 0.25-5 mm.
 62. The rolling paper according toclaim 60, wherein only the lower corner is formed as the rounded corner.63. The rolling paper according to claim 53, wherein the upper cornerand the lower corner are formed as the rounded corner and referred to asa rounded upper corner and a rounded lower corner, respectively.
 64. Therolling paper according to claim 63, wherein the rounded upper cornerhas an upper corner radius R_(UC), the rounded lower corner has a lowercorner radius R_(LC), and the upper corner radius R_(UC) differs fromthe lower corner radius R_(LC).
 65. The rolling paper according to claim53, wherein the lower edge comprises a chamfered part located betweenthe lower curved part and the lower corner.
 66. The rolling paperaccording to claim 65, wherein the chamfered part extends under an angleα away from the lower curved part and towards the upper edge.
 67. Therolling paper according to claim 66, wherein the angle α is within arange of 5-45 degrees.
 68. A tapered filter tip for a cigarette formedby a rolling paper according to claim 53, wherein: the paper body isfolded along the at least one folding line to form a folded part of thepaper body; and a remaining body part of the paper body is rolled aroundthe folded part in a spiral configuration with the first side edge, thelower corner and the upper corner being located at an outer side of thetapered filter tip.
 69. A kit of parts comprising a tapered hollowcylinder made of cigarette paper and a tapered filter tip according toclaim
 68. 70. An assembly comprising a tapered hollow cylinder made ofcigarette paper and a tapered filter tip according to claim 68, whereinthe tapered filter tip is located inside the tapered hollow cylindermade of cigarette paper.
 71. A cigarette comprising an assemblyaccording to claim 70 and a smokable substance, such as tobacco and/orcannabis, being located inside the tapered hollow cylinder made ofcigarette paper.
 72. A method for producing an assembly comprising atapered hollow cylinder made of cigarette paper and a tapered filter tipaccording to claim 68, said method comprising: placing the taperedfilter tip in a wide opening of the tapered hollow cylinder made ofcigarette paper; and moving the filter tip inside the tapered hollowcylinder made of cigarette paper from the wide opening into a positionadjacent to an opposite narrow opening of said tapered hollow cylinder.